التفاصيل البيبلوغرافية
العنوان: |
Shockwave interactions with additively-manufactured polymer structures. |
المؤلفون: |
Dattelbaum, D. M., Branch, B. A., Ionita, A., Patterson, B. M., Kuettner, L., Herman, M., Lane, J. Matthew D., Germann, Timothy C., Armstrong, Michael R., Wixom, Ryan, Damm, David, Zaug, Joseph |
المصدر: |
AIP Conference Proceedings; 2020, Vol. 2272 Issue 1, p1-6, 6p |
مصطلحات موضوعية: |
MECHANICAL behavior of materials, POLYMER structure, POISSON'S ratio, METAMATERIALS, THEORY of wave motion, STRAIN rate |
مستخلص: |
Control of structural topology, via a bottom-up approach, is now possible through the advent and continuing maturation of additive manufacturing techniques. For example, new classes of porous materials with increased strength-to-density ratios, novel thermal and acoustic properties, and even "metamaterial" properties such as negative Poisson ratios have been recently realized by tailoring deformation mechanisms and structural instabilities. It is the control of organizing features at the mesoscale (100s nm- μm's) that has led to a revolution in tailoring materials mechanical properties and function. While many examples exist in which the low strain rate mechanical responses of materials have been tailored, extensions to dynamic, high strain rate, large strain conditions have been scarcely explored. Here, we present the results of traditional plate impact methods applied to organized polymer architectures, using velocimetry and X-ray phase contrast imaging at the Advanced Photon Source. These methods allowed for the characterization of the mechanisms of shock wave propagation, localization, and compaction in the structures. In particular, we have investigated the role of interfaces on stress localization within the structures. The experimental results will be discussed in the context of finite element simulations of the same structures, including progress on topological optimization for desired dynamic response. [ABSTRACT FROM AUTHOR] |
|
Copyright of AIP Conference Proceedings is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
قاعدة البيانات: |
Complementary Index |